Since the end of the Cold War and in the context of the recent spread of economic globalization, Southeast Asian regionalism has steadily deepened and expanded, centering on ASEAN. The concept of the ASEAN Community is one of the most important aspects of this regionalism, and there have been hopes that this will be realized by 2015. The mainstream theories such as neorealism, neoliberal institutionalism, and social constructivism have offered competing explanations of this transformation. However, recently, a new phenomenon that cannot be fully explained by these state-centric theories has arisen—the movement toward constructing a regional order from below by transnational civil society actors. By adopting the analytical viewpoint of the New Regionalism Approach, which has maintained a keen interest in civil society in the process of regionalization, this study attempts to empirically analyze still largely unexplored activities undertaken by transnational civil society actors, in particular who has promoted the “alternative regionalism” against the “neoliberal regionalism” in the course of the formation of the ASEAN Community. It also seeks to examine the embryonic change toward the establishment of a new regional order in Southeast Asia from the bottom-up perspective. In conclusion, the article proves that by engaging with transnational civil society actors, ASEAN is gradually moving from an “elite club” to a “people-centered” organization. However, given the predominance of neoliberal discourse, “alternative regionalism” has not had enough influence for this to be fully realized. Nevertheless, the growing number of transnational civil society actors is resulting in improved potential to transform the persistent sovereign state system.
